Describe data structures used during passes of assembler, Computer Engineering

Assignment Help:

Describe Data structures used during passes of assembler and their use.

During passes of assembler, the Data structures define as:

Pass 1 data base

  • Input source program
  • A location counters (LC)
  • A machine-operation table (i.e. MOT), which indicates the symbolic mnemonic for each instruction and instruction's length.
  • Pseudo- operation table
  • Symbol table
  • Literal table
  • Copy of the input to be used later through pass 2

Pass 2

  • Coping of source program input to pass 1
  • Location counter (LC)
  • MOT
  • POT
  • ST
  • Base table which indicates that registers are currently identified as base register.
  • A work space, INST, which used to hold instruction as its different parts are being assembled together
  • Punch line, utilized to produce a printed listing.
  • Punch card used for converting assembled instructions in the format required by the loader.

Related Discussions:- Describe data structures used during passes of assembler

Where the trunks lines are run, Trunks are the lines that run between? ...

Trunks are the lines that run between? Trunks are the lines which run in between switching stations.

Define public identifiers, Q. Define Public Identifiers? Public Identif...

Q. Define Public Identifiers? Public Identifiers: A public identifier is one which is defined within one module of a program however potentially accessible by all of the other

What is store program control, What is store program control (SPC)? Wi...

What is store program control (SPC)? Within stored program control systems, a program or set of instructions for the computer that is stored in its memory and the instructions

Advntages of parallel processing oversequential computation, Advntages of p...

Advntages of parallel processing oversequential computation Parallel computing has the following benefits over sequential computing: i)    Accumulate time ii)   Solves b

How do we save a selected sub-image to a file in gimp, Use "Edit->Paste As-...

Use "Edit->Paste As->New Image" menu command or press Ctrl-Shift-V key combination, then save newly created image.The script-fu-selection-to image can also be used to cut a selecti

:P, My name is mrs flo and i apporve dubstep, do you apporve it?

My name is mrs flo and i apporve dubstep, do you apporve it?

What is a sap system, What is a SAP system? The union of all s/w compo...

What is a SAP system? The union of all s/w components that are assigned to the similar databases is known as a SAP system.

States the term ip addresses, States the term IP addresses? IP address ...

States the term IP addresses? IP address considers to the name of a computer onto a network, as the Internet. a. An Identifier for a device or computer onto a TCP/IP network

State the encryption and decryption process with example, State the Encrypt...

State the Encryption and decryption process with example Encryption and decryption process in the Figure where Ram wants to send a confidential message to his friend Shyam. Ram

Subprogram, create a stored procedure to debit a bank account user must ent...

create a stored procedure to debit a bank account user must enter account no. and amount to debited from account .the minimum balance in account should be 500. if the debited amoun

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd